Wiper blade



FIG. 1 is an elevation view of a wiper blade showing my new design;

FIG. 2 is a top plan view of a wiper blade showing my new design;

FIG. 3 is a side view of a wipe blade showing my new design;

FIG. 4 is an end view of a wiper blade showing my new design; and,

FIG. 5 is a bottom plan view of a wiper blade showing my new design. 

The ornamental design for a wiper blade, as shown and described. 